Table 1.

PCR primers used in this study.

Primer	Sequence (5′–3′)	Gene	Amplicon size (bp)	References
Virulence genes
tdhF	GTAAAGGTCTCTGACTTTTGGAC	tdh	269	Bej et al. (1999)
tdhR	TGGAATAGAACCTTCATCTTCACC
trhF	TTGGCTTCGATATTTTCAGTATCT	trh	500	Bej et al. (1999)
trhR	CATAACAAACATATGCCCATTTCCG
AMR genes
blaTEMF	ATAAAATTCTTGAAGAC	bla TEM	1075	Letchumanan et al. (2015)
blaTEMR	TTACCAATGCTTAATCA
qnrF	TCTCGCTAAGGCTCGTAGC	qnr	902	Poirel et al. (2005)
qnrR	TTCCTCGTCGAGGTTATTCG
ermBF	AGACACCTCGTCTAACCTTCGCTC	erm(B)	640	Raissy et al. (2012)
ermBR	TCCATGTACTACCATGCCACAGG
strBF	GGCAGCATCAGCCTTATAATTT	strB	470	Mala et al. (2016)
strBR	GTGGATCCGTCATTCATTGTT
sul2F	TGCGGATGAAGTCAGCTCC	sul2	623	Mala et al. (2016)
sul2R	GGGGGCAGATGTGATCGAC
tetAF	GTAATTCTGAGCACTGTCGC	tet(A)	957	Mala et al. (2016)
tetAR	CTGCCTGGACAACATTGCTT
dfrA1F	CAAGTTTACATCTGACAATGAGAACGTAT	dfrA1	277	Mala et al. (2016)
dfrA1R	ACCCTTTTGCCAGATTTGGTA
dfrA18R	ACTGCCGTTTTCGATAATGTGG	dfrA18	389	Mala et al. (2016)
dfrA18F	TGGGTAAGACACTCGTCATGGG
Integrons
int1F	CCTGCACGGTTCGAATG	intl1	497	Kitiyodom et al. (2010)
int1R	TCGTTTGTTCGCCCAGC
int2F	GGCAGACAGTTGCAAGACAA	intl2	247	Kitiyodom et al. (2010)
int2R	AAGCGATTTTCTGCGTGTTT
int3F	CCGGTTCAGTCTTTCCTCAA	intl3	155	Kitiyodom et al. (2010)
int3R	GAGGCGTGTACTTGCCTCAT
ICEs
intSXTF	GCTGGATAGGTTAAGGGCGG	int SXT	592	Kitiyodom et al. (2010)
intSXTR	CTCTATGGGCACTGTCCACATTG